Measurements of the Branching Fraction and Time-Dependent CP-Asymmetries of B0->J/Psi pi0 Decays

Preprint

18 July 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0507074

Abstract

We present measurements of the branching fraction and time-dependent CP asymmetries in B0->J/Psi pi0 decays based on (231.8 +/- 2.6)*10^6 Upsilon(4S) -> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy B factory at SLAC during the years 1999-2004. We obtain a branching fraction B(B0->J/Psi pi0) = (1.94 +/- 0.22 (stat) +/- 0.17 (syst))*10^-5. We also measure the CP asymmetry parameters C = -0.21 +/- 0.26 (stat) +/- 0.09 (syst) and S = -0.68 +/- 0.30 (stat) +/- 0.04 (syst). All results presented in this paper are preliminary.

Keywords

DEPENDENT CP ASYMMETRIES
BRANCHING FRACTION
ASYMMETRIES IN B0
FRACTION AND TIME
TIME DEPENDENT CP
ASYMMETRY
J/PSI
PI0

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